Definition of let out in English:

let out

phrasal verb

North American
  • (of lessons at school, a meeting, or an entertainment) finish, so that those attending are able to leave.

    ‘his classes let out at noon’
    • ‘The last screening of the film festival let out at 7:30 p.m.’
    • ‘School begins at seven and lets out at two thirty.’
    • ‘It was raining in true Florida fashion the day after the schools were let out.’
    • ‘What time does class let out?’